.builder-loading,.builder-shell{--ui-bg:#fff;--ui-subtle:#f6f8fb;--ui-hover:#edf2f9;--ui-border:#e0e5ec;--ui-text:#141e30;--ui-muted:#5e6a7b;--ui-accent:#2461db;--ui-tint:#eaf1ff;--ui-danger:#b33446;--ui-danger-bg:#fff2f3;--top-height:49px;--rail-width:76px;color:var(--ui-text);background:var(--ui-bg);font-size:14px}.builder-shell{height:100vh;height:100dvh;display:flex;flex-direction:column;overflow:hidden;position:relative}.builder-shell[data-theme=dark]{color-scheme:dark;--ui-bg:#1b2534;--ui-subtle:#222e3e;--ui-hover:#2e3d51;--ui-border:#38475b;--ui-text:#edf3ff;--ui-muted:#b3c0d3;--ui-accent:#8db4ff;--ui-tint:#283f66;--ui-danger:#ffacb5;--ui-danger-bg:#452d3a}.builder-loading{min-height:100dvh;display:grid;align-content:center;justify-items:center;gap:14px;color:#5e6a7b}.builder-loading .brand{color:#141e30}.builder-top{flex:0 0 var(--top-height);min-height:var(--top-height);gap:6px;padding:0 14px 0 21px;border-bottom:1px solid 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